/**
 * Copyright (C) 2009 aileron.cc
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package cc.aileron.template.parser.method;

import java.util.HashMap;

import cc.aileron.commons.instance.InstanceManager;
import cc.aileron.template.parser.ParserMethodNotFoundException;
import cc.aileron.template.parser.ParserMethodProvider;
import cc.aileron.template.parser.ParserMethodProviderMap;

import com.google.inject.Inject;
import com.google.inject.Singleton;

/**
 * 
 * xml-method-map
 * 
 * @author Aileron
 * 
 */
@Singleton
public class ParserMethodProviderMapImpl implements ParserMethodProviderMap
{
    public ParserMethodProvider get(final String methodName) throws ParserMethodNotFoundException
    {
        final ParserMethodProvider methodProvider = map.get(methodName);
        if (methodProvider == null)
        {
            throw new ParserMethodNotFoundException(methodName);
        }
        return methodProvider;
    }

    /**
     * @param provider
     */
    @Inject
    public ParserMethodProviderMapImpl(final InstanceManager provider)
    {
        map = new HashMap<String, ParserMethodProvider>();
        map.put("plainText", provider.get(PlainTextParserProvider.class));
        map.put("var", provider.get(VarMethodParserProvider.class));
        map.put("rep", provider.get(RepMethodParserProvider.class));
    }

    /**
     * method-classes
     */
    private final HashMap<String, ParserMethodProvider> map;
}